2007 NISSAN TIIDA Cooling

COOLING FAN
EC-307
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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COOLING FAN
DescriptionINFOID:0000000001677297
Cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
Refer to EC-70, "
System Diagram" for cooling fan operation.
Component Function CheckINFOID:0000000001677298
1.CHECK COOLING FAN LOW SPEED FUNCTION
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT-III and touch “LOW” on the CON-
SULT-III screen.
3. Make sure that cooling fans operates at low speed.
Without CONSULT-III
1. Start engine and let it idle.
2. Turn air conditioner switch and blower fan switch ON.
3. Make sure that cooling fan operates at low speed.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check cooling fan low speed control circuit. Refer to EC-307, "
Diagnosis Procedure".
2.CHECK COOLING FAN HIGH SPEED FUNCTION
With CONSULT-III
1. Touch “HI” on the CONSULT-III screen.
2. Make sure that cooling fans operates at higher speed than low speed.
Without CONSULT-III
1. Perform IPDM E/R auto active test and check cooling fan motors operation.
2. Make sure that cooling fan operates at high speed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Check cooling fan high speed control circuit. Refer to EC-307, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001677299
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES-2 >> With A/C models: GO TO 3.
YES-2 >> Without A/C models: GO TO 5.
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
 50A fusible link (letter J) (with A/C models)
 40A fusible link (letter J) (without A/C models)
 Harness for open or short between IPDM E/R and battery
IPDM E/R
Ground Continuity
Connector Terminal
E44 22 Ground Existed

EC-308
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
COOLING FAN
>> Repair or replace malfunctioning part.
3.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.
3. Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
 Harness for open or short between cooling fan motor and IPDM E/R
 Harness for open or short between cooling fan motor and ground
 Harness for open or short between IPDM E/R and ground
Resistor E5
>> Repair or replace malfunctioning part.
5.CHECK COOLING FAN MOTORS CIRCUIT FOR OPEN AND SHORT
1. Disconnect cooling fan motor harness connector.
2. Check the continuity between IPDM E/R harness connector and cooling fan motor harness connector.
3. Check the continuity between cooling fan motor harness connector or IPDM E/R harness connector and
ground.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
IPDM E/R Cooling fan motor
Continuity
Connector Terminal Connector Terminal
E44 24
E3 1 Existed
E45 30
Cooling fan motor IPDM E/R
Ground Continuity
Connector Terminal Connector Terminal
E3 2 E4659
Ground Existed
39
IPDM E/R Cooling fan motor
Continuity
Connector Terminal Connector Terminal
E4423
E31
Existed 24 2
E45 30 3
Cooling fan motor IPDM E/R
Ground Continuity
Connector Terminal Connector Terminal
E3 4 E4659
Ground Existed
39

COOLING FAN
EC-309
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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6.DETECT MALFUNCTIONING PART
Check the following.
 Harness for open or short between cooling fan motor and IPDM E/R
 Harness for open or short between cooling fan motor and ground
 Harness for open or short between IPDM E/R and ground
>> Repair or replace malfunctioning part.
7.CHECK GROUND CONNECTION
Check ground connection E24. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace ground connection.
8.CHECK COOLING FAN MOTOR
Refer to EC-309, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace malfunctioning cooling fan motor.
9.CHECK INTERMITTENT INCIDENT
Perform GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connector.
Component InspectionINFOID:0000000001677300
1.CHECK OVERALL FUNCTION
Check if the vehicle is equipped with an air conditioner.
Is it equipped with an air conditioner?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK COOLING FAN MOTOR
1. Turn ignition switch OFF.
2. Disconnect cooling fan motor harness connector.
3. Supply cooling fan motor terminals with battery voltage and check operation.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace cooling fan motor.
3.CHECK COOLING FAN MOTOR
1. Turn ignition switch OFF.
2. Disconnect cooling fan motor harness connector.
3. Supply cooling fan motor terminals with battery voltage and check operation.
Te r m i n a l s
Operation
(+) (–)
1 2 Cooling fan operates.

EC-310
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
COOLING FAN
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace cooling fan motor.
Te r m i n a l s
Operation
(+) (–)
14
Cooling fan operates at low speed.
23
1 and 2 3 and 4 Cooling fan operates at high speed.

EC-326
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
DescriptionINFOID:0000000001671117
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Component Function CheckINFOID:0000000001671118
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-326, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001671119
1.CHECK GROUND CONNECTION
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
PBIB2657E
(+) (–)
Voltage
Connector Terminal Connector Terminal
F1141
(Refrigerant pressure sensor signal)F11 48 1.0 - 4.0V
Refrigerant pressure sensor
Ground Voltage
Connector Terminal
E17 3 Ground Approx. 5V

EC-330
< ECU DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
ECM
FUEL PUMP RLY For 1 seconds after turning ignition switch: ON
 Engine running or crankingON
 Except above OFF
THRTL RELAY  Ignition switch: ON ON
COOLING FAN  Engine: After warning up, idle the
engine
 Air conditioner switch: OFFEngine coolant temperature is 98°C
(208°F) or lessOFF
Engine coolant temperature is between
98°C (208°F) and 99°C (210°F)LOW
Engine coolant temperature is 100°C
(212°F) or moreHIGH
HO2S1 HTR (B1) Engine: After warming up
 Engine speed: Below 3,600rpmON
 Engine speed: Above 3,600 rpm OFF
HO2S2 HTR (B1) Engine speed: Below 3,900 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no loadON
VEHICLE SPEED Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.Almost the same speed as
the speedometer indication
IDL A/V LEARN  Engine: runningIdle air volume learning has not been per-
formed yet.YET
Idle air volume learning has already been
performed successfully.CMPLT
TRVL AFTER MIL  Ignition switch: ONVehicle has traveled after MI has turned
ON.0 - 65,535 km
(0 - 40,723 miles)
O2 SEN HTR DTY Engine coolant temperature when engine started: More than 80°C (176F)
 Engine speed: Below 3,600 rpmApprox. 30%
AC PRESS SEN Engine: Idle
 Both A/C switch and blower fan switch: ON (Compressor operates)1.0 - 4.0V
VHCL SPEED SE Turn drive wheels and compare CONSULT-III value with the speedometer in-
dication.Almost the same speed as
the speedometer indication
SET VHCL SPD  Engine: Running ASCD: OperatingThe preset vehicle speed is
displayed
MAIN SW  Ignition switch: ONMAIN switch: Pressed ON
MAIN switch: Released OFF
CANCEL SW  Ignition switch: ONCANCEL switch: Pressed ON
CANCEL switch: Released OFF
RESUME/ACC SW  Ignition switch: ONRESUME/ACCELERATE switch:
PressedON
RESUME/ACCELERATE switch: Re-
leasedOFF
SET SW  Ignition switch: ONSET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1
(ASCD brake switch) Ignition switch: ON Brake pedal: Fully released (A/T)
 Brake pedal and clutch pedal: Fully re-
leased (M/T)ON
 Brake pedal: Slightly depressed (A/T)
 Brake pedal and/or clutch pedal: Slight-
ly depressed (M/T)OFF
BRAKE SW2
(Stop lamp switch) Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON Monitor Item Condition Values/Status

ECM
EC-359
< ECU DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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DTC RELATED ITEM
Engine operating condi-
tion in fail-safe modeDetected items RemarksReference
page
Engine speed will not
rise more than 2,500 rpm
due to the fuel cutMalfunction indicator
lamp circuitWhen there is an open circuit on MI circuit, the ECM cannot warn the
driver by lighting up MI when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related
diagnoses are continuously detected as NG for 5 trips, ECM warns the
driver that engine control system malfunctions and MI circuit is open by
means of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MI
circuit are detected and demands the driver to repair the malfunction.EC-324
DTC No. Detected items Engine operating condition in fail-safe mode
P0011 Intake valve timing control The signal is not energized to the intake valve timing control solenoid valve and the valve
control does not function.
P0102
P0103Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the time after turning
ignition switch ON or START.
CONSULT-III displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned ON
or START40°C (104°F)
More than approx. 4 minutes after
ignition ON or START80°C (176°F)
Except as shown above40 - 80°C (104 - 176°F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0605 ECM (When ECM calculation function is malfunctioning:)
ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
ECM deactivates ASCD operation.
P1121 Electric throttle control ac-
tuator(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the
engine stalls.
The engine can restart in P or N (A/T), Neutral (M/T) position, and engine speed will not
exceed 1,000 rpm or more.
P1122 Electric throttle control
functionECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P1124
P1126Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.

ENGINE CONTROL SYSTEM SYMPTOMS
EC-369
< SYMPTOM DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nismTiming chain
55555 55 5EM-50
CamshaftEM-59
Intake valve timing controlEM-50
Intake valve
3EM-80
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-32
Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
55555 55 5EM-40
,
EM-42
,
LU-9
Oil level (Low)/Filthy oilLU-6
Cooling Radiator/Hose/Radiator filler cap
55555 55 45CO-16
Thermostat 5CO-22
Water pumpCO-20
Water galleryCO-24
Cooling fan
5CO-18
(with A/C)
CO-18
(without A/
C)
Coolant level (Low)/Contaminat-
ed coolantCO-11
NATS (NISSAN Vehicle Immobilizer System) 1 1SEC-7
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA